FR2386427A1 - ELASTIC LEG, IN PARTICULAR FOR AIRCRAFT LANDING GEAR - Google Patents
ELASTIC LEG, IN PARTICULAR FOR AIRCRAFT LANDING GEARInfo
- Publication number
- FR2386427A1 FR2386427A1 FR7809949A FR7809949A FR2386427A1 FR 2386427 A1 FR2386427 A1 FR 2386427A1 FR 7809949 A FR7809949 A FR 7809949A FR 7809949 A FR7809949 A FR 7809949A FR 2386427 A1 FR2386427 A1 FR 2386427A1
- Authority
- FR
- France
- Prior art keywords
- landing gear
- aircraft landing
- elastic leg
- cylinder
- compression chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/58—Arrangements or adaptations of shock-absorbers or springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Gear Transmission (AREA)
- Gears, Cams (AREA)
Abstract
Jambe élastique, de préférence pour trains d'atterrissage d'avions, constituée par un piston, une tige de piston et un vérin, la roue étant montée à l'extrémité libre de la tige de piston et la chambre de compression du vérin raccordée à une alimentation en fluide sous pression par l'intermédiaire d'une ou plusieurs valves. La chambre de compression 5 du vérin 1 est raccordée à un dispositif de réglage de la charge 7, 8, 9, 10, 11 qui règle l'admission ou l'évacuation fluide sous pression en tant que fonction de la caractéristique élastique recherchée.Resilient leg, preferably for aircraft landing gear, consisting of a piston, a piston rod and a cylinder, the wheel being mounted at the free end of the piston rod and the compression chamber of the cylinder connected to a supply of pressurized fluid via one or more valves. The compression chamber 5 of the cylinder 1 is connected to a load regulator 7, 8, 9, 10, 11 which regulates the inlet or outlet of pressurized fluid as a function of the desired elastic characteristic.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772715895 DE2715895C2 (en) | 1977-04-09 | 1977-04-09 | Suspension strut, preferably for aircraft landing gears |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2386427A1 true FR2386427A1 (en) | 1978-11-03 |
FR2386427B1 FR2386427B1 (en) | 1983-09-16 |
Family
ID=6005999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7809949A Granted FR2386427A1 (en) | 1977-04-09 | 1978-04-04 | ELASTIC LEG, IN PARTICULAR FOR AIRCRAFT LANDING GEAR |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2715895C2 (en) |
FR (1) | FR2386427A1 (en) |
GB (1) | GB1591689A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0047209A1 (en) * | 1980-08-29 | 1982-03-10 | Messier-Hispano-Bugatti (S.A) | Shock damper |
FR2503055A1 (en) * | 1981-04-02 | 1982-10-08 | Messier Auto Ind | Adjustable height hydraulic suspension for motor vehicles - uses combined height adjuster and damper unit controlled by electrically operated hydraulic pressure fluid distributor valve |
EP0080291A2 (en) * | 1981-11-17 | 1983-06-01 | Lonnie K. Woods | Computer optimized adaptive suspension system having combined shock absorber/air spring unit |
WO1985001919A1 (en) * | 1983-10-24 | 1985-05-09 | Group Lotus Car Companies Plc | Vehicle suspension arrangements |
EP0174876A1 (en) * | 1984-09-14 | 1986-03-19 | Menasco Inc | Shock absorbing strut for aircraft undercarriage |
FR2570784A1 (en) * | 1984-09-21 | 1986-03-28 | Freudenberg Carl | PNEUMATIC SHOCK ABSORBER |
US4634142A (en) * | 1983-08-15 | 1987-01-06 | C & K Venture Income I-Coast | Computer optimized adaptive suspension system |
EP0188199A3 (en) * | 1985-01-12 | 1987-05-13 | Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. | Aircraft landing gear |
US4722548A (en) * | 1981-11-17 | 1988-02-02 | Hamilton James M | Computer optimized adaptive suspension system having combined shock absorber/air spring unit |
EP0398797A1 (en) * | 1989-05-18 | 1990-11-22 | AEROSPATIALE Société Nationale Industrielle | Device to reduce the suppleness of a landing gear oleopneumatic damper, and landing gear and damper equipped with it |
US5009400A (en) * | 1988-12-16 | 1991-04-23 | Dr. Ing. H.C.F. Porsche Ag | Active spring-and-damper system |
US5529152A (en) * | 1994-07-08 | 1996-06-25 | Aimrite Systems International, Inc. | Variable constant force hydraulic components and systems |
US6502837B1 (en) | 1998-11-11 | 2003-01-07 | Kenmar Company Trust | Enhanced computer optimized adaptive suspension system and method |
CN113482983A (en) * | 2021-06-30 | 2021-10-08 | 三一汽车制造有限公司 | Control method and system for oil pressure balance of support oil cylinder and operating machine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9481452B2 (en) * | 2010-11-22 | 2016-11-01 | The Boeing Company | Hydraulic actuator for semi levered landing gear |
GB2483734B (en) * | 2011-01-24 | 2013-10-16 | Messier Dowty Ltd | Landing gear |
US8939400B2 (en) | 2011-02-21 | 2015-01-27 | The Boeing Company | Air-ground detection system for semi-levered landing gear |
CN104443369A (en) * | 2014-10-29 | 2015-03-25 | 中国商用飞机有限责任公司 | Buffering device of undercarriage buffering support |
CN113023326B (en) * | 2021-03-16 | 2022-05-31 | 安徽春华智能科技有限公司 | Bolt impact transportation rack convenient to move |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743222A (en) * | 1972-02-17 | 1973-07-03 | Boeing Co | Vortex valve shock absorber |
FR2273710A1 (en) * | 1974-06-06 | 1976-01-02 | Automotive Prod Co Ltd | AIRCRAFT LANDING GEAR |
-
1977
- 1977-04-09 DE DE19772715895 patent/DE2715895C2/en not_active Expired
-
1978
- 1978-04-04 FR FR7809949A patent/FR2386427A1/en active Granted
- 1978-04-05 GB GB1337878A patent/GB1591689A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743222A (en) * | 1972-02-17 | 1973-07-03 | Boeing Co | Vortex valve shock absorber |
FR2273710A1 (en) * | 1974-06-06 | 1976-01-02 | Automotive Prod Co Ltd | AIRCRAFT LANDING GEAR |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0047209A1 (en) * | 1980-08-29 | 1982-03-10 | Messier-Hispano-Bugatti (S.A) | Shock damper |
FR2497896A1 (en) * | 1980-08-29 | 1982-07-16 | Messier Hispano Sa | DAMPER |
US4506869A (en) * | 1980-08-29 | 1985-03-26 | Messier-Hispano-Bugatti | Dual chamber shock absorbers for aircrafts and the like |
FR2503055A1 (en) * | 1981-04-02 | 1982-10-08 | Messier Auto Ind | Adjustable height hydraulic suspension for motor vehicles - uses combined height adjuster and damper unit controlled by electrically operated hydraulic pressure fluid distributor valve |
EP0080291A2 (en) * | 1981-11-17 | 1983-06-01 | Lonnie K. Woods | Computer optimized adaptive suspension system having combined shock absorber/air spring unit |
EP0080291A3 (en) * | 1981-11-17 | 1984-07-04 | Lonnie K. Woods | Computer optimized adaptive suspension system having combined shock absorber/air spring unit |
US4722548A (en) * | 1981-11-17 | 1988-02-02 | Hamilton James M | Computer optimized adaptive suspension system having combined shock absorber/air spring unit |
US4634142A (en) * | 1983-08-15 | 1987-01-06 | C & K Venture Income I-Coast | Computer optimized adaptive suspension system |
EP0142947A1 (en) * | 1983-10-24 | 1985-05-29 | Group Lotus Plc | Vehicle suspension arrangements |
WO1985001919A1 (en) * | 1983-10-24 | 1985-05-09 | Group Lotus Car Companies Plc | Vehicle suspension arrangements |
EP0174876A1 (en) * | 1984-09-14 | 1986-03-19 | Menasco Inc | Shock absorbing strut for aircraft undercarriage |
FR2570784A1 (en) * | 1984-09-21 | 1986-03-28 | Freudenberg Carl | PNEUMATIC SHOCK ABSORBER |
EP0188199A3 (en) * | 1985-01-12 | 1987-05-13 | Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. | Aircraft landing gear |
US5009400A (en) * | 1988-12-16 | 1991-04-23 | Dr. Ing. H.C.F. Porsche Ag | Active spring-and-damper system |
FR2647170A1 (en) * | 1989-05-18 | 1990-11-23 | Aerospatiale | DEVICE FOR REDUCING THE FLEXIBILITY OF AN OLEO-PNEUMATIC LANDING DAMPER, AND DAMPER AND LIFT COMPRISING THE SAME |
EP0398797A1 (en) * | 1989-05-18 | 1990-11-22 | AEROSPATIALE Société Nationale Industrielle | Device to reduce the suppleness of a landing gear oleopneumatic damper, and landing gear and damper equipped with it |
US5094407A (en) * | 1989-05-18 | 1992-03-10 | Aerospatiale Societe Nationale Industrielle S.A. | Device for reducing the flexibility of an oleo-pneumatic shock absorber for an undercarriage, and shock absorber and undercarriage including it |
US5529152A (en) * | 1994-07-08 | 1996-06-25 | Aimrite Systems International, Inc. | Variable constant force hydraulic components and systems |
US6502837B1 (en) | 1998-11-11 | 2003-01-07 | Kenmar Company Trust | Enhanced computer optimized adaptive suspension system and method |
CN113482983A (en) * | 2021-06-30 | 2021-10-08 | 三一汽车制造有限公司 | Control method and system for oil pressure balance of support oil cylinder and operating machine |
CN113482983B (en) * | 2021-06-30 | 2023-06-16 | 三一汽车制造有限公司 | Control method and system for oil pressure balance of supporting leg oil cylinder and working machine |
Also Published As
Publication number | Publication date |
---|---|
DE2715895B1 (en) | 1978-10-05 |
FR2386427B1 (en) | 1983-09-16 |
GB1591689A (en) | 1981-06-24 |
DE2715895C2 (en) | 1979-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |